考博考试

【单选题】 It can safely be inferred that Sept. 11 ______.
A．confirmed the failure of polygraph in detecting deception
B．made American begin to know about lie detection
C．gave a spur to the study of lie detection in the United States
D．triggered America's development of lie detectors

网考网参考答案：C
网考网解析：
由with fresh interest since Sept.11, the discovery is part of a boom in the scientific study of deceit and its detection可知正确答案是C(推动了美国的探谎研究)。 查看试题解析出处>>